from django.apps import AppConfig
from django.db.models.signals import post_migrate


def apply_change_password(sender, **kwargs):
    '''
    Apply new change_password permission for all users
    Depending on settings SHOW_PROFILE_EDIT_PASSWORD
    '''
    from django.conf import settings
    from django.contrib.auth.models import User, Permission
    if hasattr(settings, 'SHOW_PROFILE_EDIT_PASSWORD'):
        print('\033[1m! \033[92mSHOW_PROFILE_EDIT_PASSWORD is found inside settings.py\033[0m')
        print('\033[1m* \033[92mApplying permission can_change_password for all users\033[0m')
        users = User.objects.all()
        permission = Permission.objects.get(codename='change_password')
        if settings.SHOW_PROFILE_EDIT_PASSWORD:
            print('\033[1m! \033[91mWarning!!! Setting to True for all users\033[0m')
            for user in users:
                user.user_permissions.add(permission)
        else:
            print('\033[1m* \033[91mWarning!!! Setting to False for all users\033[0m')
            for user in users:
                user.user_permissions.remove(permission)
        print('\033[1m! Don`t forget to remove the option from settings.py\033[0m')


def create_admin(sender, **kwargs):
    '''
    Create initial admin user
    '''
    from django.contrib.auth.models import User
    from accounts.models import UserAttributes

    plan = kwargs.get('plan', [])
    for migration, rolled_back in plan:
        if migration.app_label == 'accounts' and migration.name == '0001_initial' and not rolled_back:
            if User.objects.count() == 0:
                print('\033[1m* \033[92mCreating default admin user\033[0m')
                admin = User.objects.create_superuser('admin', None, 'admin')
                UserAttributes(user=admin, max_instances=-1, max_cpus=-1, max_memory=-1, max_disk_size=-1).save()
            break


class AccountsConfig(AppConfig):
    name = 'accounts'
    verbose_name = 'Accounts'

    def ready(self):
        post_migrate.connect(create_admin, sender=self)
        post_migrate.connect(apply_change_password, sender=self)